Dispense with Chanel, I'm in a teenager's clothes (9)
I believe the answer is:
eliminate
'dispense' is the definition.
(thesaurus)
'chanel i'm in a teenager's clothes' is the wordplay.
'clothes' indicates a hidden word (the letters clothe the hidden word).
'ELIMINATE' is hidden within 'chanel im in a teenagers'.
'with' is the link.
(Other definitions for eliminate that I've seen before include "put out" , "Discard - exclude" , "Wipe out" , "Get rid of, or exclude from further stage of game" , "Knock out" .)